Journal ArticleDOI
Behaviour of benzylidene acetone during zinc electrodeposition in weakly acid solution containing a nonionic surfactant and/or carboxylic acid
D. Mockutė,G. Bernotienė +1 more
TLDR
In this article, the transformation products of benzylidene acetone formed during zinc electrodeposition in solutions containing a nonionic surfactant and/or carboxylic acid were determined by IR and 1H NMR-spectra after extraction and chromatographic separation.Abstract:
The transformation products of benzylidene acetone formed during zinc electrodeposition in solutions containing a nonionic surfactant and/or carboxylic acid were determined by IR and 1H NMR-spectra after extraction and chromatographic separation. 1-Phenylbutanone-3, 1-phenylbutanole-3 and 1-phenylbutane were cathodic reaction products. Benzaldehyde, acetone, benzyl alcohol and benzoic acid were chemical reaction products in the cathodic layer. The nonionic surfactant increased the solubility of benzylidene acetone and carboxylic acid. This effect is probably caused by hydrophobic interaction and formation of associates. The associates cover a larger area of the cathodic surface than unsaturated ketone and/or carboxylic acid alone. It is supposed that a synergistic effect of additive mixtures on zinc electrodeposition may be caused by the formation of associates.read more
Citations
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Characterization of the corrosion products of electrodeposited Zn, Zn–Co and Zn–Mn alloys coatings
TL;DR: In this paper, the morphology, composition, phase composition and corrosion products of pure Zn (obtained from two types of electrolytic bath: an acidic bath (Zn acid ) and a cyanide-free alkaline bath(Zn alkaline )) and of Zn-Mn and Zn−Co alloys on steel substrates were studied.
Journal ArticleDOI
Synergistic effects of additives on morphology, texture and discharge mechanism of zinc during electrodeposition
TL;DR: In this article, the effect of different combination of additives, cetyltrimethylammonium bromide (CTAB), salicylaldehyde (SAL) and acetic acid (AA) on surface morphology, texture and grain size of zinc electrodeposits were systematically analyzed by scanning electron microscopy (SEM) and X-ray diffraction pattern (XRD).
Journal ArticleDOI
Electrodeposition of nanocrystalline zinc from acidic sulfate solutions containing thiourea and benzalacetone as additives
TL;DR: In this paper, the influence of benzalacetone concentration and pulse peak current density on the grain size and crystallographic orientation of zinc deposits was investigated, and particle-like nanocrystalline zinc with a (10 ǫ)-random orientation was obtained.
Journal ArticleDOI
Electrodeposition and corrosion behavior of Zn coatings formed using as brighteners arene additives of different structure
TL;DR: In this paper, the effect of the molecular structure of the aliphatic chain in arenes (phenyl+ alphatic chain) used as brightener additives on the reduction kinetics, morphology and corrosion resistance of Zn coatings was examined.
Journal ArticleDOI
Effect of Additives on Electrodeposition of Nanocrystalline Zinc from Acidic Sulfate Solutions
TL;DR: In this article, the influence of polyethylene glycol (PEG), cetyltrimethylammonium bromide (CTAB), benzalacetone (BA), and thiourea (TU) on pulse electrodeposition of zinc from acidic sulfate baths was investigated by X-ray diffraction, scanning electron microscopy, and potentiodynamic polarization techniques.
References
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Journal ArticleDOI
Recent Progress in Bright Plating from Zincate Electrolytes
TL;DR: In this paper, the development and commercial application of decorative electroplating from zincate solutions is reviewed and new organic additives are described and an explanation of their role in the zincate solution put forward.
Journal ArticleDOI
Change in pH near the cathode during zinc plating in weak acidic chloride baths.
TL;DR: In this paper, a composite antimony micro-electrode, consisting of an antimony electrode, an Ag/AgCl reference electrode and Luggin capilally tube, under galvanostatic conditions in baths of zinc chloride-potassium chloride (0-0.3M ZnCl2+0-2.5M H3BO3; pH5.8.